A report from the Australasian Railway Association highlights one of the reasons why investing in public transport can be so useful – it allows people to save money and in some situations a considerable amount. The report titled The Costs of Commuting: An Analysis of Potential Commuter Savings compares estimates of the cost of commuting by car with the costs for using PT to get to work. It also compares the costs based on just leaving their car at home with not having a car at all. The key findings for NZ are:
- The average New Zealander commuter pays $11,852.98 per annum in car ownership and running costs
- For those that decide to not own a car and commute with public transport instead, New Zealand commuters on average can potentially save $9,065.78 each year.
- On average, if a New Zealand car owner decides to leave their vehicle at home and use public transport to commute to work, they can potentially save $2,119.03 a year
However in the case of Auckland and Wellington those costs could be even higher as the analysis uses what they call a “conservative estimate” of $1,000 per year for parking costs. That works out at about $4 per day which in some parts of Auckland like the city centre, is way less than you can find a carpark for. Further they also haven’t taken into account other vehicle costs such as insurance, or non monetary costs such as the costs to the environment or from congestion. Similarly on the PT side the analysis hasn’t considered potential upsides to PT use such as being able to use phones/tablets, read a book, have a sleep, socialise or even be productive and work.
The estimated savings for the various cities in the study are below.
The savings are further broken down depending on the size of the vehicle being driven.
One big issue I do have is that it appears the authors of the report have only chosen to compare the costs for a two locations at the extremities of the rail network which in the case of Waitakere is one of the least used stations in Auckland.
Despite its limitations I do think the point that PT can save individuals (or households) a considerable amount of money is an important one and it highlights why we need to build projects that make the PT system more useful. By doing so it means more people are able to use the network and in turn benefit from the savings provided. It also means that households may be able to drop from three cars to two or from two cars to one saving them even more money and space.